Berlin Syndrome (2017)

While holidaying in Berlin, Australian photojournalist Clare meets Andi, a charismatic local man, and there is an instant attraction between them. A night of passion ensues. But what initially appears to be the start of a romance suddenly takes an unexpected and sinister turn when Clare awakens the following morning to discover that Andi has left for work, leaving her locked in his apartment. An easy mistake to make--except that Andi has absolutely no intention of releasing her. Ever.